Are we really sure? China was said to be different, and yet when I worked there, we were called out for having worse gender diversity than our stateside counterparts. It turned out that while China produced many more female CS graduates, they didn’t stay in technical positions long enough to solve gender diversity problems after graduation.
India also has problems it seems, eg http://bwsmartcities.businessworld.in/article/Is-India-Inc-C.... I wouldn’t say any country has really solved this problem.